Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
SWEETMAN MARY E
  2. Issuer Name and Ticker or Trading Symbol
DST SYSTEMS INC [DST]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
Sr VP & Chief Human Resources
(Last)
(First)
(Middle)
333 WEST 11TH STREET
3. Date of Earliest Transaction (Month/Day/Year)
04/16/2018
(Street)

KANSAS CITY, MO 64105
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 04/16/2018   D   11,691 (1) D $ 84 11,294 D  
Common Stock 04/16/2018   D   11,294 (2) D $ 0 0 D  

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
SWEETMAN MARY E
333 WEST 11TH STREET
KANSAS CITY, MO 64105
      Sr VP & Chief Human Resources  

Signatures

 Mary E. Sweetman   04/18/2018
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Consists of shares of common stock and vested RSUs that were cancelled in exchange for $84.00 per share pursuant to the terms of an Agreement and Plan of Merger (the Merger Agreement) dated as of January 11, 2018 among DST Systems, Inc. (the Company), SS&C Technologies Holdings, Inc. (SS&C) and Diamond Merger Sub, Inc. (Merger Sub), pursuant to which Merger Subs will merge (the Merger) with and into the Company, whereupon the existence of Merger Sub will cease and the Company will become the surviving corporation and an indirect wholly owned subsidiary of SS&C. The Merger became effective on April 16, 2018 (the Effective Time).
(2) Consists of unvested restricted stock units (Unvested RSUs) that were converted, pursuant to the Merger Agreement into unvested RSUs in respect of SS&C common stock, with each unvested RSU converted into 1.70140 RSUs of SS&C.

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